Configuration
Custom Providers
Crush supports custom provider configurations for both OpenAI-compatible and Anthropic-compatible APIs.
OpenAI-Compatible APIs
Here’s an example configuration for Deepseek, which uses an OpenAI-compatible
API. Don't forget to set DEEPSEEK_API_KEY in your environment.
{
"$schema": "https://charm.land/crush.json",
"providers": {
"deepseek": {
"type": "openai",
"base_url": "https://api.deepseek.com/v1",
"api_key": "$DEEPSEEK_API_KEY",
"models": [
{
"id": "deepseek-chat",
"name": "Deepseek V3",
"cost_per_1m_in": 0.27,
"cost_per_1m_out": 1.1,
"cost_per_1m_in_cached": 0.07,
"cost_per_1m_out_cached": 1.1,
"context_window": 64000,
"default_max_tokens": 5000
}
]
}
}
}Anthropic-Compatible APIs
Custom Anthropic-compatible providers follow this format:
{
"$schema": "https://charm.land/crush.json",
"providers": {
"custom-anthropic": {
"type": "anthropic",
"base_url": "https://api.anthropic.com/v1",
"api_key": "$ANTHROPIC_API_KEY",
"extra_headers": {
"anthropic-version": "2023-06-01"
},
"models": [
{
"id": "claude-sonnet-4-20250514",
"name": "Claude Sonnet 4",
"cost_per_1m_in": 3,
"cost_per_1m_out": 15,
"cost_per_1m_in_cached": 3.75,
"cost_per_1m_out_cached": 0.3,
"context_window": 200000,
"default_max_tokens": 50000,
"can_reason": true,
"supports_attachments": true
}
]
}
}
}How is this guide?